Toyota Motor Corp., already coping with worldwide recalls of some 8 million vehicles to fix accelerator pedal flaws, has been ordered by Japan’s transport ministry to probe complaints that the company’s best-selling Prius hybrid sedan may have defective brakes.
The ministry says it received at least 14 reports in November and December about Prius cars that lost braking power. In the U.S., the National Highway Traffic Safety Administration reports more than 100 such complaints.
The reports describe a momentary loss of braking, especially when driving over slippery or bumpy roads at low speeds. The Nikkei speculates the problem may relate to the car’s regenerative braking system, which converts energy normally wasted during braking into stored electrical power. An onboard computer coordinates the two braking systems.
Meanwhile, Toyota is rushing parts to European dealerships to fix 1.8 million vehicles equipped with defective accelerator pedals that may not return to the idle position when released. Dealerships are expected to start repairing vehicles next week.
The European recall involves the Auris, Avensis, Aygo, Corolla, iQ, RAV4, Verso and Yaris built since February 2005. Toyota is conducting a similar campaign in North America that involves another 2.3 million Toyota brand models.
Last fall Toyota began a recall of nearly 5.4 million Toyota and Lexus vehicles in the U.S. to fix an unrelated flaw that could permit the driver’s side floor mat to jam the accelerator pedal in the open position.

